Loss-of-heterozygosity on chromosome 19q in early-stage serous ovarian cancer is associated with recurrent disease.

ABSTRACT: BACKGROUND: Ovarian cancer is a heterogeneous disease and prognosis for apparently similar cases of ovarian cancer varies. Recurrence of the disease in early stage (FIGO-stages I-II) serous ovarian cancer results in survival that is comparable to those with recurrent advanced-stage disease. The aim of this study was to investigate if there are specific genomic aberrations that may explain recurrence and clinical outcome. METHODS: Fifty-one women with early stage serous ovarian cancer were included in the study. DNA was extracted from formalin fixed samples containing tumor cells from ovarian tumors. Tumor samples from thirty-seven patients were analysed for allele-specific copy numbers using OncoScan single nucleotide polymorphism arrays from Affymetrix and the bioinformatic tool Tumor Aberration Prediction Suite. Genomic gains, losses, and loss-of-heterozygosity that associated with recurrent disease were identified. RESULTS: The most significant differences (p?

SUBMITTER: Skirnisdottir I 

PROVIDER: S-EPMC3495882 | biostudies-other | 2012

REPOSITORIES: biostudies-other